Reed loom



July4 26, 1932. l c. E. NORDSTROM I A'1,868,717

REED LOOM Filed July 24 1930l y"/Sheecs-Sheet 1 July 26, 1932- y G. E. NoRDTRoM 1,868,717

REED LOOM Filed July 24, 1930 7 Sheets-Sheet 2 July 26? 1932. v Q E, NORDSTRQM 1,868,717

. REED LOOM' Filed July 24. 1930 '7 Sheets-Sheet 3 r\/".TI`Y I 'if wm@ Ik Q si L" l IJ 3 Q p w O M b Q L I i *l l W k f F@ i l Inf/swr' @fa/f7? afafz/a//z I @wfw July 26, 1932. G. E. NORDSTROM f/ 1,858,717

' REED Loom Filed July 24, 1950 'r Sheets-Sheet 4 July 26, 1932. 1 G, E, NORDSTROM 1,868,717

REED LOOM Filed July 24. 1930 7 Sheets-Sheet 5 K @my l Wm Wj, me,

July 26, 1932. G. E. NORDSTROM 1,868,717

REED LOOM Filed July 24. 1950 '7 Sheets-Sheet 6 Jl, f4" -57 July 26, 1932 G. E. NORDSTROM 1,868,717

REED LOOM Filed` July 24, 193.0 7 Sheets-Sheet 7 Patented July 26, 1932 @NEED STATE PATENT oFFicE .GUSTAV E. NORDSTROM, OF GARDNER, MASSACHUSETTS, ASSIGNOR TO AMERICAN yEl'BlRJE CORPORATION, 0F GARDNER, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS REED LOOM Application filed. .Tuly 24,

This invention relates to looms forkweaving fibre reeds or other similar material. Fibre reed is formed from twisted kraft paper and the reed used for weft or filling is supplied to the loom from a reel ordrum which is positioned at one'side of the loom. This weft reed is drawn from the reel or drum by suitablefeeding mechanism and the free end of the reed is projected across the fabric through suitable guideways. LOne form of feeding mechanism is shown in the prior patent to NordstrommNo. 1,749,840, issued March 11, 1930. After a length of reed is thus inserted, the reed is cut and the inserted piece of reed is beaten into the fabric.

It is the object of my invention to improve the mechanism for guiding and beating up the reed, to the intentthat much more rapid operation of the loom may be attained.

A further obiect of my invention is to provide novel mechanism for moving the beaters in a desired path.

My invent-ion further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention isshown in the drawings, in which Fig. 1 is an end view of the reed guiding devices and the actuating mechanism therefor;

Fig. 2 is a detail front elevation, looking in the direction of the arrow 2 in Fig. 1;

Fig. 3 is a sectional side elevation ofthe 1. beater operating mechanism., taken along the line 3--3 in Figs. 4 and 5;

Fig. 4 is a plan view of the driving eccentrics andconnections, looking in the direction of the arrow 4 in Fig. 3;

Fig. 5 is a front elevation of the beater and its supporting structure, looking in the direction of the arrow 5 in Fig. 3;

Fig. 6 is a sectional side elevation, showing the operative relation of the guiding devices and beater;

Fig. 7 is a detail sectional side elevation, showing the guiding devices in a dierent relation; l

Fig. 8 is a frontv elevation of the rear or lower guiding device;

1930. Serial No. 470,365.

Fig. 9 is a rear elevation of the front or upper guiding device;

Fig. 10 is a view similar to Fig. 6 but showing the parts at the beginning of the beat-up motion.- i

Fig. 11 is a front elevation of the mechanism for cutting the reed; y

Fig. 12is a sectionalside elevation of the parts shown in Fig. 11; i

Fig. 13 is a detail elevation of the lower end of a knife slide support, and

Fig. 14 is a side elevation of the beater and its supporting frame, and shows the path of movement of the beater in relation to the warp. y

Referring to the drawings, I have shown portions of a reed loom including loom sides 10 on which rrame members 11 and 12 (Fig. l

1) are mounted. Shafts 13 and 14 extend across the loom and are pivotally mounted in the frame members 11 at the opposite sides of the loom. Upper guide members 16 are mounted on the lower shaft 14 and lower guide memberslS are mounted on the upper Y shaft 13.

An arm 2O v( Fig. 1) extends rearward from the upper shaft 1.3 and is connected by a link 21 to the forwardly extending horizontal arm of a bell crank 22 pivoted at 23 on the loom frame 10. The link 21 is adjustable as t0 length and also has a-bolt and slot connection with ythe arm 20, so that both the locus and extent of ,movement of the arm 2O may be easily adjusted and controlled.

A cam roll 24 on a depending arm of the bell crank 22 engages a cam 25 ycontinuously rotated by the camshaft 26` on which it is mounted. A spring 27 holds the roll 24 in close engagement with the cam 25.

Forwardly extending arms `30 and 31y are secured to the upper and lower shafts 13 and Y 14. A member 32 (Fig. 2) is pivotally mounted at the outer end of the arm 31, to which it is secured by a pivot stud 33.r A member 34 is similarly pivoted at ythe outer end of the arm 30, to which itis secured by a pivot stud 35. -f

A rod 36v is adjustable lengthwise in the member .32 and may be secured therein by check nuts 37 and a set screw 38. The upper portion of the rod 3G extends loosely through an opening in the member Sil, and the rod is provided with an enlarged head 39 adapted to engage the upper face of the member 3i. I have thus provided a lost motion connection between the arms 30 and 31 so constructed that the amount of lost motion may be readily adjusted.

)Viren the arms 2O and 30 on the upper shaft 13 are rocked by the cam 25, the lower guide members 18 are moved from the stationary guiding position shown in Fig. 6 to the releasing position shown in Fig. 7 before any movement of the shaft 1st and upper guiding members 1G takes place.

The member Bil; (F then engages the upper end of the member 32 and the guiding members 1G and 1S are. moved to the inoperative position shown in Fig. 10. Suitable springs (not shown) are provided for returning the shafts 1.3 and 14 and members 1o and 18 to the normal guiding position shown in Figs. 1 and G.

The upper guiding members 16 (Figs. 7 and 9) are formed as a series of lingers iixed to a plate 40 (Fig. 9) which extends across the loom and is secured 'to the lower aft 1st, which is preferably of square cross section between its bearings. The guiding members or lingers 16 are thickened at th Ir lower ends and are provided with segmental conical guiding openings l1 which are cut away at their lower sides7 so that the lower part of each opening is entirely open.

The lower guiding members 1S are similarly formed in the shape of depending .tingers secured to a plate l2 extending across the loom and fastened to the side of the upper shaft 18. The fingers 1S are provided with forwardly projecting offset extensions which closely underlie the opei'iings 41 in the lower ends of the lingers 1G when the parts are in the normal position shown in Fig. 6.

)Vith the parts in this position, the reed is projected by suitable feeding mechanism (not shown) through the openings 41 of the upper guiding members 16 and the reed is held in these o ienings by the forward projee-tions of the lower guiding members 1S.

It will be noted that the shafts 13 and 14 are mounted on the fixed members 11 and that they remain in fixed position during the feeding of the reed. This is a substantial advantage, as it permits a fresh reed to be inserted in the guiding members while the lay is beating up the previous reed. This saves a substantial amount of time over the earlier construction of our loom, in which the guiding members were mounted on the lay and it was necessary to bring the lay to rest during each feeding movement.

ln Figs. 11 and 13 l have shown mechanism for cutting the reed after it is thus inserted. ThiC mechanism comprises a stationary knife or die plate 50 11) through which the reed passes from the reel to the guiding members 1G and 1S. The reed also passes through an opening in the uper end of a knife slide 51, which is aligned with the opening in the die plate 50 during the feeding of the reed.

The knife slide is mounted in suitable guideways 52 (Fig. 12) and is provided with a cam roll for a purpose to be described. it its lower end the slide 51 engages the upper end of a support 511 (Fig. 13), slidable in guideways on the loom frame and engaged by an adjusting screw 55 at its lower end. The slide 5imay thus be vertically adjusted as desired to align the opening in the knife slide 51 with the oj ening in the die plate 50. The support 5l may then be fixed in position by a binding bolt 5G (Fig. 13) extending through a slot in the support and clamping the support firmly to the loom frame.

i coil spring 5T extends between a stud 58 on the knife slide 51 and a stud 59 on the slide support 541. The spring 5'? acts to seat the knife slide firmly on the support 54; during the operation of the feeding mechanism.

A cam plate or br cket GO (Figs. 6 and 10) is mounted on the swinging frame of the beater and engages the cam roll 53 as the beater moves rearward, thus lifting the knife slide and severing the inserted reed just prior to release thereof. The raised position of the knife slide is clearly shown in Fig. 10.

The beater of my improved loom is preferably formed by cutting recesses 72 in a beater plate (Fig. thus forming a plurality of beater fingers 71 projecting upwardly from the plate and spaced apart to provide openings for the warp threads. The beater plate 70 is mounted on a lay 73 having downvardly extending supporting arms Tl substantially spaced apart. At their lower ends the arms Tlare mounted on a. cross shaft 75 and at their middle portions the arms 74 are connected by a second or upper cross shaft 76 (Fig. 5).

n* their lower ends the arms 74 are also provided with hub portions T7 which are received in forwardly and downwardly inclined slots or cam openings 78 141-) formed in brackets 79 secured to an inner frame 10a by bolts SO (Fig. extending through slots in the bracket 79.

An eccentric 81 (Figs. 3 and Ll) is mounted on a drive shaft S2 and is connected by a link 83 to the lower cross shaft T5. A pair of additional eccentrics 85 are mounted on the shaft Si). in a predetermined angular relation to the eccentric 81, and the eceentrics 85 are connected by links 86 to the end portions of the upper cross shaft TG.

As the eccentric shaft 82 rotates, the lay 73 moves from the full line to the dotted line position shown in Fig. 14 and the upper ends of the fingers 71 describe the closed path indicated in broken lines in the upper part of Fig. 14.

The eccentrics are so related that the upper eccentrics swing the lay 73 rearward and downward so that it passes under the guiding members 16 and 18 as indicated in Fig. 6.

The lower eccentric then becomes operative, drawing the lower rock shaft 75 rearward and at the same time causing it to be raised by the action of the cam openings 7 8 in the brackets 79. The beater fingers are thus raised approximately at their rearward limit of movement and are thereafter moved forward in a position to engage the reed R (Fig. 10) which has been forced downward out of the openings 41 in the upper guiding members 16 by the warp threads W which have been moved downward by the closing of the shed, such movement occurring just after the guiding members have been separated as shown in Fig. 7.

The beater fingers 71 are forced forward in raised position, as indicated in Fig. 14, by the continued action of the eccentrics and at the same time they are gradually lowered by sliding the shaft 75 forward in the cam openings 78.

The action of the lay carrying the beater fingers is thus substantially continuous and without any extended dwell and the motion as produced by the eccentrics 81 and 85 is extremely easy and can be performed at relatively high speed. Furthermore, the feeding of the reed takes place during the beating up of the previously inserted reed, so that a fresh reed is ready to be beaten up as soon as the lay returns to rearward position.

I am thus able to accomplish several very desirable results. In the first place, the reed is fed through guiding members which are stationary during the feeding operation; in the second place, the reed is positively removed from the guiding members by the closing of the warp shed, and in the third place the beating mechanism is operable at relatively high speed and is not required to come to rest during the feeding operation. These and other advantages permit operation of the loom at substantially higher speeds than have been heretofore possible and also reduce the wear on the parts, due to the marked smoothness of the eccentric action.

The improved beater motion shown and described is not claimed specifically in this application, as this mechanism forms the subject-matter of a divisional application Serial No. 507,887, filed by me January 10, 1981.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the detail-s herein disclosed, otherwise than as set forth in the claims, but what I clailn is 1. In a reed loom, a loom frame, weft reed guiding members mounted on said loom frame and ,held stationary during reed guidi ing operations, and lmeans to separate said members 'transversely `of the weft to release the inserted reed. p

2; `The .combination in a loom kas set forth in claim .1,.in which said latter means includes a lost motion connection between saidmembers, whereby one of said members is moved only aftera predetermined movement ofthe other member. 1

8. 'The combination in la'loom Vas set. forth in claim 1, in which cutting devices for the weft reed are provided having weft reed openings normally aligned with the stationary position of the weft reed openings in said weft reed guiding members and in which means is provided to produce relative motion between the parts of said cutting devices be-y fore transverse releasing movement of said weft reed guiding devices out of alignment with said cutting devices.

4. In a reed loom, a loom frame, a pair of shafts rotatably mounted therein, a setof weft reed guiding devices mounted on one shaft, a set of cooperating guiding devices mounted on the other shaft, and means to` move said shafts to cause said two sets of devices to approach and recede from each other, thereby alternately guiding and releasing the weft reed.

5. The combination in a loom as set forth in claim 4, in which means is provided effective to move one set of said devices to release the weft reed and to thereafter remove both sets of4 devices from operative position during the beating up of the weft reed.

6. The combination in a loomkas set forth in claim 4, in which cam means is provided to cause relative movement of said two sets of devices to release the weft reed, said cam means being thereafter effective to` move both sets of devices to inoperative position during the beating up of the weft reed.

7. In a reed loom, weft reed guiding devices, means to insert a weft reed in said devices and to release said weft reed by trans verse separation of said devices, and means to beat upa weft reed released from said guiding devices, said inserting and said beating up means simultaneously yengaging successive weft reeds.

8. In a reed loom, weft reed guiding devices having a stationary guiding position, a lay, beater fingers on said lay and means to release a weft reed from said guiding devices by relative separation of said devices, transversely of the reed supported therein as the lay approaches back center.

9. In a reed loom, weft reed guiding devices having a stationary guiding position, a lay, beater fingers on saidlay, and means to release a weft reed from said guiding devices by relative separation of said devices, transversely ofthe reed supported therein as the lay approaches back center, said weft reed bein deposited in front of said beater fingers by csing movement of the Warp shed.

10. In a reed loom, a set of weft reed guiding fingers having segmental conical guid ing openings in their lower end faces and a second set of weft reed guiding devices having offset projections underlying said open ings when said parts are in guiding position.

In testimony whereof I have hereunto axed my signature.

GUSTAV E. NORDSTROM. 

